Install User Admin Simplifier either via the WordPress.org plugin directory, or by uploading the files to your server
That’s it. You’re ready to go! To edit your users menus, go to Tools->User Admin Simplifier
Submenus are now available for disabling. Note that disabling a top level menu removes it, no submenu items will be available. On the other hand, disabling all submenu items does not disable the top level menu.
Unininstalling and deleting the plugin will remove all of its settings.